diff --git a/src/data/bookshelf.json b/src/data/bookshelf.json
index ac32eb4..5bb5772 100644
--- a/src/data/bookshelf.json
+++ b/src/data/bookshelf.json
@@ -31,6 +31,10 @@
         },
         {
           "title": "Star Wars: The Tales of Kenobi"
+        },
+        {
+          "title": "Presentation Zen: Simple Ideas on Presentation Design and Delivery",
+          "isbn": 9780321811981
         }
       ]
     },